openapi: 3.1.0
info:
  title: SAP Sales and Distribution (SD) SAP Billing Document Credit Account API
  description: Read, cancel, and retrieve billing documents in PDF format from SAP S/4HANA. This OData service (API_BILLING_DOCUMENT_SRV) provides access to billing document headers, items, partners, and pricing elements. Supports invoices, credit memos, debit memos, and other billing document types as part of the order-to-cash cycle.
  version: 1.0.0
  contact:
    name: SAP Support
    url: https://support.sap.com
  license:
    name: SAP Developer License
    url: https://www.sap.com/about/agreements/product-use-and-support-terms.html
servers:
- url: https://sandbox.api.sap.com/s4hanacloud/sap/opu/odata/sap/API_BILLING_DOCUMENT_SRV
  description: SAP S/4HANA Cloud Sandbox
- url: https://{host}:{port}/sap/opu/odata/sap/API_BILLING_DOCUMENT_SRV
  description: SAP S/4HANA On-Premise
  variables:
    host:
      default: localhost
    port:
      default: '443'
security:
- basicAuth: []
- oauth2: []
tags:
- name: Credit Account
  description: Operations on credit management accounts
paths:
  /A_CrdtMgmtBusinessPartner:
    get:
      operationId: listCreditAccounts
      summary: Retrieve a list of credit management accounts
      description: Returns a collection of credit management business partner accounts with credit profile information.
      tags:
      - Credit Account
      parameters:
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/select'
      - $ref: '#/components/parameters/expand'
      - $ref: '#/components/parameters/inlinecount'
      responses:
        '200':
          description: Successfully retrieved credit accounts
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    type: object
                    properties:
                      results:
                        type: array
                        items:
                          $ref: '#/components/schemas/CrdtMgmtBusinessPartner'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /A_CrdtMgmtBusinessPartner('{BusinessPartner}'):
    get:
      operationId: getCreditAccount
      summary: Retrieve a single credit management account
      description: Returns credit management data for a single business partner, including credit rating, risk class, and credit block status.
      tags:
      - Credit Account
      parameters:
      - name: BusinessPartner
        in: path
        required: true
        description: Business partner number
        schema:
          type: string
          maxLength: 10
      - $ref: '#/components/parameters/select'
      - $ref: '#/components/parameters/expand'
      responses:
        '200':
          description: Successfully retrieved the credit account
          content:
            application/json:
              schema:
                type: object
                properties:
                  d:
                    $ref: '#/components/schemas/CrdtMgmtBusinessPartner'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
    patch:
      operationId: updateCreditAccount
      summary: Update a credit management account
      description: Updates credit management data for a business partner.
      tags:
      - Credit Account
      parameters:
      - name: BusinessPartner
        in: path
        required: true
        description: Business partner number
        schema:
          type: string
          maxLength: 10
      - $ref: '#/components/parameters/ifMatch'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CrdtMgmtBusinessPartnerUpdate'
      responses:
        '204':
          description: Credit account successfully updated
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  parameters:
    filter:
      name: $filter
      in: query
      schema:
        type: string
    skip:
      name: $skip
      in: query
      schema:
        type: integer
        minimum: 0
    select:
      name: $select
      in: query
      schema:
        type: string
    ifMatch:
      name: If-Match
      in: header
      required: true
      schema:
        type: string
    expand:
      name: $expand
      in: query
      schema:
        type: string
    top:
      name: $top
      in: query
      schema:
        type: integer
        minimum: 0
    inlinecount:
      name: $inlinecount
      in: query
      schema:
        type: string
        enum:
        - allpages
        - none
  responses:
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Bad request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    CrdtMgmtBusinessPartnerUpdate:
      type: object
      properties:
        CreditRiskClass:
          type: string
          maxLength: 3
        CreditRating:
          type: string
          maxLength: 3
        CreditIsBlockedForBP:
          type: boolean
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: object
              properties:
                lang:
                  type: string
                value:
                  type: string
    CrdtMgmtBusinessPartner:
      type: object
      description: Credit management business partner entity
      properties:
        BusinessPartner:
          type: string
          maxLength: 10
          description: Business partner number
        CreditRiskClass:
          type: string
          maxLength: 3
          description: Risk class
        CreditRating:
          type: string
          maxLength: 3
          description: Credit rating
        CreditIsBlockedForBP:
          type: boolean
          description: Credit block indicator
        LastInternalReviewDate:
          type: string
          format: date
          description: Date of last internal review
        NextInternalReviewDate:
          type: string
          format: date
          description: Date of next internal review
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://{tenant}.authentication.{landscape}.hana.ondemand.com/oauth/token
          scopes:
            API_BILLING_DOCUMENT_SRV: Access to Billing Document API